The line comes from the Filthy Frank universe created by George Miller on YouTube, where the villain Chin Chin confronts Frank in a series of surreal, low budget sketches. The Filthy Frank Show built a large online following in the 2010s for its chaotic lore, exaggerated characters and deliberately absurd dialogue. Short lines like this were clipped and shared as reaction sounds, and the portal explanation survived beyond the original video because it works for any sudden appearance, online or in edited videos, without needing the full scene.